an·i·ma·tron | \ ˈa-nə-mə-ˌträn \
plural animatrons

Definition of animatron 

: a puppet or similar figure that is animated by means of electromechanical devices : an animatronic figure In Jurassic Park, the Steven Spielberg dinosaur action thriller, the full-sized animatron of the Tyrannosaurus Rex weighed almost 7000 kilograms.Daily Telegraph (Sydney, Australia), 5 Nov. 2002

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First Known Use of animatron

1971, in the meaning defined above

History and Etymology for animatron

short for audio-animatron, back-formation from audio-animatronic

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The first known use of animatron was in 1971

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an open space surrounded by woods

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